Warner Electric TCS-200-1H - Manual (Page 17)

17 Warner Electric • 800-825-9050 P-2003-2 • 819-0420
If using a 4-20 mA input, remove the wire from
terminal 4 of terminal block TB1 and connect a
second DC current meter capable of reading zero
to 20 mA between this terminal and the positive
4-20 mA signal wire. Connect the positive (+) lead
to terminal 4 and the negative (-) lead to the wire.
o 11. Adjust the analog input to obtain a zero
voltage reading on the voltmeter connected
between terminals 3 and 2, or a 4 mA reading on
the current meter connected on terminal 4 of
terminal block TB1.
o 12. Place a full roll of material on the unwind
stand.
o 13. Set the front panel tension adjust for the
starting torque required for the application.
o 14. Start the machine and draw the web through.
o 15. Monitor the voltage at terminals 3 and 2 or
the current at terminal 4 of terminal block TB1,
as well as the brake current on terminal 1 of
terminal block TB2.
a. If using a sensor: As the roll diameter
decreases, the sensor voltage or current will
decrease which will cause the brake torque to
decrease, keeping the tension proportional to the
roll size.
b. If using a PLC: As the roll diameter decreases,
the analog signal from the PLC must decrease to
keep the tension proportional to the roll size.
o 16. After an initial run has been completed,
remove power from the system and wait
approximately 30 seconds before proceeding to
the next step.
o 17. Remove the meter from between the sense
magnet lead to terminal 1 of terminal block TB2
and tighten the terminal screw.
Proceed to step 19.
All Other Two Wire Tension Brakes
o 5. Attach a DC voltmeter capable of reading
zero to 24 VDC between terminals 2 and 3 of
terminal block TB2. Connect the positive (+)
lead to terminal 2 and the negative (-) lead to
terminal 3.
o 6. Reapply power to the control system.
o 7. Place the mode selector switch in the brake
“off” position. The meter should read zero
voltage and the brake should free wheel.
o 8. Place the mode selector switch in the brake
“stop” position. The meter should read
approximately 24 VDC and the brake should be
locked.
o 9. Place the mode selector switch in the brake
"run" position and set the tension adjust
potentiometer to its maximum (fully clockwise)
setting.
Note: Refer to Table 2 and Table 3 for various
inputs and outputs when using the analog input
system.
If using a 4-20 mA input, remove the wire from
terminal 4 of terminal block TB1 and connect a
second DC current meter capable of reading zero
to 20 mA between this terminal and the positive
4-20 mA signal wire. Connect the positive (+) lead
to terminal 4 and the negative (-) lead to the wire.
o 11. Adjust the analog input to obtain a zero
voltage reading on the voltmeter connected
between terminals 3 and 2, or a 4 mA reading
on the current meter connected on terminal 4
of terminal block TB1.
o 12. Place a full roll of material on the unwind
stand.
o 13. Set the front panel tension adjust for the
starting torque required for the application.
o 14. Start the machine and draw the web
through.